Observed change and the extent of coherence in the Gulf Stream system
Abstract By transporting warm and salty water poleward, the Gulf Stream system maintains a mild climate in northwestern Europe while also facilitating the dense water formation that feeds the deep ocean. The sensitivity of North Atlantic circulation to future greenhouse gas emissions seen in climate models has prompted an increasing effort to monitor the various ocean circulation components in recent decades. Here, we synthesize available ocean transport measurements from several observational programs in the North Atlantic and Nordic Seas, as well as an ocean state estimate (ECCOv4-r4), for an enhanced understanding of the Gulf Stream and its poleward extensions as an interconnected circulation system. We see limited coherent variability between the records on interannual timescales, highlighting the local oceanic response to atmospheric circulation patterns and variable recirculation timescales within the gyres. On decadal timescales, we find a weakening subtropical circulation between the mid-2000s and mid-2010s, while the inflow and circulation in the Nordic Seas remained stable. Differing decadal trends in the subtropics, subpolar North Atlantic, and Nordic Seas warrant caution in using observational records at a single latitude to infer large-scale circulation change.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Observed change and the extent of coherence in the Gulf Stream system ; volume:20 ; number:3 ; year:2024 ; pages:799-816 ; extent:18
Ocean science ; 20, Heft 3 (2024), 799-816 (gesamt 18)
- Klassifikation
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Politik
- Urheber
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Asbjørnsen, Helene
Eldevik, Tor
Skrefsrud, Johanne
Johnson, Helen L.
Sanchez-Franks, Alejandra
- DOI
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10.5194/os-20-799-2024
- URN
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urn:nbn:de:101:1-2408051442327.581730904343
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:47 MESZ
Datenpartner
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Beteiligte
- Asbjørnsen, Helene
- Eldevik, Tor
- Skrefsrud, Johanne
- Johnson, Helen L.
- Sanchez-Franks, Alejandra
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